diff --git a/src/storage/memtable/ob_lock_wait_mgr.cpp b/src/storage/memtable/ob_lock_wait_mgr.cpp
index 70aa7e2a3ea97b24108f16ebea6f2b7e1bb90c7f..9e478f5bc76ba7e86329eacb7e08edefb7b895f4 100644
--- a/src/storage/memtable/ob_lock_wait_mgr.cpp
+++ b/src/storage/memtable/ob_lock_wait_mgr.cpp
@@ -296,7 +296,8 @@ ObLink* ObLockWaitMgr::check_timeout()
         iter->on_retry_lock(hash);
         TRANS_LOG(INFO, "current task should be waken up", K(*iter));
       } else if (0 == iter->sessid_) {
-        // do nothing, may be rpc plan, sessionid is not setted
+        // when lock wait in dag worker, session is not exist
+        need_check_session = false;
       } else {
         // do nothing
       }